Sash fastener



Nov. 3I 19.25.

R. s. REID sAsa FAsTnmsn Filed sept. 29. 191s Patented Nov. 3, 1925.

UNI'IF@ ROBERT STUART REID,` OF PRINCE ALBERT, SASKATCHEWAN, CANADA.

SASH FASTENER.

Application filed September 29, 1913. Serial No. 792,476.

To all 197mmz't may concer/it: Y

Be it known that I, ROBERT STUART REID, a subject of the King of Great Britain, residing in the city of Prince Albert, in the Province ot Saskatchewan, Canada, have `invented certain new and useful ImprovementsA in Sash Fasteners, of which the following is the specification.

The invention relates to improvements in sash fasteners and anobject ot the invention is to provide a fastener which'upon the lower sash being independently locked closed will act to positively lock the upper sash against opening and which is also designed such that should the upper sash be Opened for Ventilating or such like purposes and the lower sash subsequently locked closed it is impossible tor one to open the top sash any further, although the same will close freely. v

A further object is to construct the fastener such that `upon the ybottom sash being unlocked and raised the top sash is free to operate either up or down. Y

A still further ob'ectis to construct the invention in an extremely simple, cheap and durable manner and so that it can be readily applied to existing windows.

With the above more important objects in.

view the invention consists essentially in the arrangement and construction of parts here-. inafter more particularly described and later pointed out in the appended claims, reference being had to the accompanying drawing in which: l

Fig. 1 is a side view of a window equipped with my invention. i .i I

Fig. 2 is an enlarged detailed horizontal sectional view at 2 2 Fig. 1.

Fig. 3 is a vertical sectional view at 3.-3

Fig.' 2 and lookin-g towards the outer sash.`

Fig. 4 is a vertical sectional view at 4 4 Fig. 2 and looking towards the inner.

sash.

Fig. 5 is a perspective view of a portionv of the window frame and showing the catch.

Fig. 6 is an enlarged detailed vertical sectional view at 6-6 Fig. 1.

In the drawing like characters of .refer-V ence indicate corresponding parts in thev strip 6, secured to the 'frame in the ordinary manner. The sashes can be counterbalancec or not, as desired. f

In supplying a window with my invention it is necessary that some means: be eme ployed for positively locking the inner or lower sash closed when desired.

The lock 7, which I herein show, is located centrally on the bottom member of the lower sash yand comprises a facing plate 8 suitably fastened to the sash and pro-videdI with a finger hook 9. The facing plate carries a pivoted latch 10 with which a pressure spring 11 is associated, the latch and spring being suitably housed within ay cavity 12 provided in the sash. f

The latch is positioned such that it will catch a staple 13 driven into the sill of the iramevand in so doing will lock the lower sash against opening. as caught on the staple in Figure 6 of the drawing.

In order to positively lock the latch I have fitted it with a screw threaded shank 14 which protrudes through the plate 8 and carries a lock nut 15. ing up the nut the latch is pulled inwardly and held permanently caught on the staple.

To release the latch one simply unscrews thenut 15 and presses the shank inwardly to Jfree the latch from the staple.

I might here mention that the finger piece 9 overhangs the nut,. thereby making it difficult for one, such as a thief, to release the nut by working ,from above. V

Whilst I have entered into a detailed description of this lock I wish it to be understood that I do not desire to be limited to such an appliance as any device which will positively lock the lower sash closed will serve my purpose.

More or less centrally of the height of the frame I recess the same to provide two opposing similar substantially V-shaped pockets 16 and 17, these pockets being located at opposite sides of the parting strip.

, Customarily the parting strip is mounted in a vertical channel 18 provided in the frame and the notching is best. done by first removing the parting strip and then cutting The catch is shown Obviously, by tightenangled tia'nge' 21. This plate really faces the side and bottom of the pocket and it is held in place by a screw 22 screwed into the frame.

The fastener 23 which I supply presents a short dog 24 and a long dog 25 connected by a cross shank 26. The dog 24 has the end thereof curved slightly downwardly, whilst the dog 25 has the end curved slightly upwardly.V This fastener isput in place within the pockets, with the shank entered in the. groove 19, the dog 24 inthe pocket 16 and the dog in the pocket 17. Qbviously, the parting` strip requires to be moved to insert the fastener and: after the parting strip has been replaced'the shank 26 is pivotally retained within the groove. A

This corner of the outer sash adjoining the parting strip is rabbetted and to the said inner corner I secure permanently a vertically ektending rack 27 presenting a plurality ofv ratchet teeth 28 adapted to be engaged by the short dog 24 when thesaid dog is in its lowermost position and thearrangement of the teeth is such that they prevent tlie opening of the ysash upon en gagement with the said dog. y y ,n y p The upper inner cornerof the yinner sash isprvided with a pocket 29 which is adapted to receive the dog 25 when the innersash is closed. The wall of the pocket is, howeveizarranged such that upon the saidy inner sash being opened the dog 25 will bevraised and such movement will act to simultaneously raise the dog; 24and pass Yit clear of the ratchet teeth. The lower end of thel rack terminates a short distance above the lower end of the outer sash and is best shown in Fig. 3.

Accordingly whenk the lower sash isy opened the dog 24 is held entirely vclear of the ratchet teeth, such being due to the fact that the end of the dog 25i1s then riding or contacting` with the edge of the sash and will notmovev'until such time that the pocket presents itself.

I-n order, to better understand the action I willl first assume that the ylower sash is held closed by the lock 7 and4 that the pocket 29 is positioned such thatit receives the dog 25 which is resting in Ithe' position -as best shown in Fig. 4. If the uppersash ybe at this time closed it cannot be opened for the reason that the dog 24 to engagewithland lock against the underside of the lowermost tooth of the rack. It is to beunderstood,l in this connection that the closed upper sash has a very l'mited vertical movement which is determined y the distance between the lowermost racktooth and the bottom of the sash.

If onekdesires to havetheir upper sash open, .such as for Ventilating purposes, they will first release the, lock and open the lower sash; which action will raise the dog 25 and will consequently pass the dog 24 away from the ratchet teeth. In this conncction it is to be understood that the dog 25 actually forces the upper sash upwardly a limited amounte such upward ymovement permitting the door 25 to clear the lowermost tooth. The upper sash can then be opened `any requiredkv amount. One then closes Vandl locks the lower sash and when this occurs the dog 25 again enters the pocket 29 and permits the dog 24 to engage one of the ratchet teeth. The upper sash cannot then be opened further, although it is free to close.

It is pointed out also that should the lower sash be opened one can open and close the upper sash as they desire.

This fastener is particularly desirable as it is cheap`durable and effective and can be readily installed and it permits one'to positively lock both sashes closed or to have a certain amount of ventilation by the opening of the upper vsash and without having to worry about sneak thieves entering a house through the window. p IlVhat- I claim as my invention is:v y

i. In a window, the combination with vertically slidable uppei1 and lower sashes, of a pivoted fastener carried by the frame and presenting a pair of dogs extending towards the sashes, one of said dogs being adaptedto enter a pocket provided in the upper coriiei of the lower sash inthe closed position of said sash and a rack bar secured to the side of the upper sash and presenting ratchet teeth engageable with the other 'of the dogs and locking the upper sash against opening during the interval lthat the former dog is in thepocket. y

In a window, the combination with vertically slidable upper and lower sashes, of a fastener pivotally carried by the frame and presenting a comparatively short dog extending toward the upper sash vand. a ,comparatively long` dog extending toward the lower sash. said long dog being received in a pocket provided in the upper corner of the lower sash when the latter is in closed position, and a rack bar permanently secured to the side of the upper sash and presenting ratchet teeth adapted by engagement with the short dog to prevent furtherr open-- ing from a pre-selected position of the upper sash during the interval that the long dog is in thepocket of the lower sash.

3. The combination with a windowframe, of a fastener pivotally mounted in the side of the frame and substantially midway of the height thereof and presenting a comparatively long dog eXtendingpinto' the sash channel of the. inner frame and a rrelatii'ely shorter dog extending into the sash channel of the outer frame. y y

In ,testimony whereof I have signed this specification. 

